public class PointTest {
/*
// version 0
public static void main(String args[]) {
Point p = new Point();
p.x = 1; p.y = 2;
System.out.printf("(%d, %d)", p.x, p.y);
}
*/
/*
// version 1
public static void main(String args[]) {
Point p = new Point(10, 20);
p.move(1, -1);
p.print();
System.out.println("
");
}
*/
// version 2
public static void main(String args[]) {
ColorPoint cp = new ColorPoint(10, 20, "green");
cp.move(1, -1);
// cp.color = "noSuchColor";
cp.print();
System.out.println("
");
}
/*
// version 3
public static void main(String args[]) {
Point p = new Point(10, 20);
p.move(1, -1);
p.print();
System.out.println("
");
ColorPoint cp = new ColorPoint(20, 30, "green");
cp.print();
System.out.println("
");
Point[] pts = new Point[2];
pts[0] = p; pts[1] = cp;
int i;
for (i=0; i<2; i++) {
pts[i].move(10, 10);
}
for (i=0; i<2; i++) {
pts[i].print();
System.out.println("
");
}
moveInSquare(p);
moveInSquare(cp);
}
static void moveInSquare(Point p) {
p.move(1, 0);
p.print();
System.out.print(" ");
p.move(0, 1);
p.print();
System.out.print(" ");
p.move(-1, 0);
p.print();
System.out.print(" ");
p.move(0, -1);
p.print();
System.out.println("
");
}
*/
}